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Amnesteophis melanauchen (JAN, 1863)

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common Names 
SynonymEnicognathus melanauchen JAN 1863: 267
Enicognathus melanauchen — JAN 1866
Rhadinaea melanauchen — BOULENGER 1894: 175
Liophis melanauchen — AMARAL 1929: 173
Liophis melanauchen — VANZOLINI in PETERS & OREJAS-MIRANDA 1986
Echinanthera melanauchen — DI BERNARDO 1992
Amnesteophis melanauchen — MYERS 2011
Amnesteophis melanauchen — WALLACH et al. 2014: 28 
DistributionBrazil (Bahia), possibly in error

Type locality: Bahia, Brazil. Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
Reproductionoviparous 
TypesHolotype: RMNH (Leiden) 
CommentNomenclature: The snake generic name Enicognathus and the emendation Henicognathus are both junior homonyms of bird names (MYERS 2011).

Abundance: very rare; only known from the type specimen (Myers & McDowell 2014)

Type species: Enicognathus melanauchen JAN 1863 is the type species of the genus Amnesteophis MYERS 2011 and of the new tribe Amnesteophiini MYERS 2011. 
EtymologyAmnesteophis (forgotten snake), from Greek amnēstos “forgotten, no longer remembered”) + connective -e- + ophis (“snake”). Gender masculine. (For purposes of euphony, the derivation imposes elision of the final vowel in amnēstos, and the connective vowel -e- is employed rather than the -o- normally used in latinized compounding of Greek elements.) Jan’s specific name melanauchen (a Schlegel manuscript name) appears compounded from the Greek combining element melan- (neuter of melas, “black or very dark”) + auchēn (“neck”)—a masculine noun in apposition, referring to a dark blotch on the neck. 
References
  • Amaral,A. do 1930. Estudos sobre ophidios neotropicos XVIII. Lista remissiva dos ophidios da região neotropica. Mem. Inst. Butantan 4: 126-271 [1929] - get paper here
  • Boulenger, George A. 1894. Catalogue of the Snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphæ. British Mus. (Nat. Hist.), London, xi, 382 pp. - get paper here
  • Di Bernardo,M. 1992. Revalidation of the gênero Rhadinaea Copegenus Echinanthera COPE 1894 and its conceptual amplification (Serpentes, Colubridae). Comun. Mus. Ciênc. PUCRS, sér. zool., Porto Alegre 5 (13): 225-256
  • Jan, G. 1863. Enumerazione sistematica degli ofidi appartenenti al gruppo Coronellidae. Arch. Zool. Anat. Fisiol. 2 (2): 213-330 [1862] - get paper here
  • Jan, G. 1866. Iconographie générale des ophidiens. 16. Livraison. J.B. Bailière et Fils, Paris - get paper here
  • Myers, Charles W. 2011. A New Genus and New Tribe for Enicognathus melanauchen Jan, 1863, a Neglected South American Snake (Colubridae: Xenodontinae), with Taxonomic Notes on Some Dipsadinae. American Museum Novitates (3715): 1-33 - get paper here
  • Myers, Charles W. and Samuel B. McDowell 2014. New Taxa and Cryptic Species of Neotropical Snakes (Xenodontinae), with Commentary on Hemipenes as Generic and Specific Characters. Bulletin of the American Museum of Natural History 385 (1) : 1-112. - get paper here
  • Peters,J.A., Orejas-Miranda,B. & Vanzolini,P.E. 1986. Catalogue of the Neotropical Squamata (Revised Edition) Part I: Snakes. Smithsonian Institution Press (Washington D.C., London)
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. Taylor and Francis, CRC Press, 1237 pp.
 
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